Instructions 50 disposable nitrous oxide whip cream chargers,non-refillable. Chargers are specially made for making whip cream in cream whippers. Use cream whippers and chargers only in accordance with instructions. They are food-grade triple filtered for taste and safety. They fit all pressure whippers for convenience and ease of use. Note --Do not inhale contents, misuse can be dangerous to your health!!!!! --Do not store above 50°C/120°F. --Keep out of full chargers. --Dispose of the box in empty condition only. If possible, please recycle in your area. Weight Net weight:8 grams pure N2O(E 942) Gross weight:32 grams.